diff --git a/terraform/environments/dev/main.tf b/terraform/environments/dev/main.tf
index 5d48223..888fdcf 100644
--- a/terraform/environments/dev/main.tf
+++ b/terraform/environments/dev/main.tf
@@ -21,4 +21,13 @@ module "network" {
   backend_cidr     = var.backend_cidr
   database_cidr    = var.database_cidr
   ssh_source_ranges = var.ssh_source_ranges
-}
\ No newline at end of file
+}
+
+module "compute" {
+  source            = "../../modules/compute"
+  instance_type      = var.instance_type
+  zone               = var.zone
+  frontend_subnet_id = var.frontend_subnet_id
+  backend_subnet_id  = var.backend_subnet_id
+  database_subnet_id = var.database_subnet_id
+}
diff --git a/terraform/environments/dev/variable.tf b/terraform/environments/dev/variable.tf
index 7f1df68..dd94252 100644
--- a/terraform/environments/dev/variable.tf
+++ b/terraform/environments/dev/variable.tf
@@ -33,8 +33,39 @@ variable "database_cidr" {
   type        = string
   default     = "10.0.3.0/24"
 }
+
 variable "ssh_source_ranges" {
   description = "ssh"
   type        = string
   default     = "0.0.0.0/0"
+}
+
+variable "frontend_subnet_id" {
+  description = "frontend subnet id"
+  type        = string
+  default     = module.network.subnet_ids["frontend"]
+}
+
+variable "backend_subnet_id" {
+  description = "backend subnet id"
+  type        = string
+  default     = module.network.subnet_ids["backend"]
+}
+
+variable "database_subnet_id" {
+  description = "database subnet id"
+  type        = string
+  default     = module.network.subnet_ids["database"]
+}
+
+variable "zone" {
+  description = "zone"
+  type        = string
+  default     = var.region +"-b"	
+}
+
+variable "instance_type" {
+  description = "instance_type"
+  type        = string
+  default     = "e2-small"
 }
\ No newline at end of file
diff --git a/terraform/modules/compute/main.tf b/terraform/modules/compute/main.tf
index e69de29..9e22672 100644
--- a/terraform/modules/compute/main.tf
+++ b/terraform/modules/compute/main.tf
@@ -0,0 +1,69 @@
+resource "google_compute_instance" "instance_frontend" {
+  name         = "instance de frontend"
+  machine_type = var.instance_type
+  zone         = var.zone
+
+  boot_disk {
+    initialize_params {
+      image = "debian-cloud/debian-11"
+      size  = 10
+    }
+  }
+
+  network_interface {
+    access_config {} # IP publique
+    subnetwork = var.frontend_subnet_id
+  }
+
+  tags = ["frontend", "ssh"]
+
+  metadata = {
+    enable-oslogin = "TRUE"
+  }
+}
+
+resource "google_compute_instance" "instance_backend" {
+  name         = "instance de backend"
+  machine_type = var.instance_type
+  zone         = var.zone
+
+  boot_disk {
+    initialize_params {
+      image = "debian-cloud/debian-11"
+      size  = 10
+    }
+  }
+
+  network_interface {
+    subnetwork = var.backend_subnet_id
+  }
+
+  tags = ["backend", "ssh"]
+
+  metadata = {
+    enable-oslogin = "TRUE"
+  }
+}
+
+resource "google_compute_instance" "instance_database" {
+  name         = "instance de database"
+  machine_type = var.instance_type
+  zone         = var.zone
+
+  boot_disk {
+    initialize_params {
+      image = "debian-cloud/debian-11"
+      size  = 10
+    }
+  }
+
+  network_interface {
+    subnetwork = var.database_subnet_id
+  }
+
+  tags = ["database", "ssh"]
+
+  metadata = {
+    enable-oslogin = "TRUE"
+  }
+}
\ No newline at end of file
diff --git a/terraform/modules/compute/outputs.tf b/terraform/modules/compute/outputs.tf
index e69de29..efeacb1 100644
--- a/terraform/modules/compute/outputs.tf
+++ b/terraform/modules/compute/outputs.tf
@@ -0,0 +1,19 @@
+output "instance_ip" {
+  value = {
+    frontend =google_compute_instance.instance_frontend.network_interface[0].network_ip
+    backend  =google_compute_instance.instance_backend.network_interface[0].network_ip
+    database =google_compute_instance.instance_database.network_interface[0].network_ip
+  }
+}
+
+output "private_ip_frontend" {
+  value = google_compute_instance.instance_frontend.network_interface[0].access_config[0].nat_ip
+}
+
+output "name_instance" {
+  value = {
+    frontend = google_compute_instance.instance_frontend.name
+    backend  = google_compute_instance.instance_backend.name
+    database = google_compute_instance.instance_database.name
+  }
+}
\ No newline at end of file
diff --git a/terraform/modules/compute/variable.tf b/terraform/modules/compute/variable.tf
index e69de29..f932195 100644
--- a/terraform/modules/compute/variable.tf
+++ b/terraform/modules/compute/variable.tf
@@ -0,0 +1,19 @@
+variable "instance_type" {
+  type = string
+}
+
+variable "zone" {
+  type = string
+}
+
+variable "frontend_subnet_id" {
+  type = string
+}
+
+variable "backend_subnet_id" {
+  type = string
+}
+
+variable "database_subnet_id" {
+  type = string
+}
diff --git a/terraform/modules/network/outputs.tf b/terraform/modules/network/outputs.tf
index e69de29..b7921d7 100644
--- a/terraform/modules/network/outputs.tf
+++ b/terraform/modules/network/outputs.tf
@@ -0,0 +1,11 @@
+output "vpc_id" {
+  value = google_compute_network.vpc.id
+}
+
+output "subnet_ids" {
+  value = {
+    frontend = google_compute_subnetwork.frontend.id
+    backend  = google_compute_subnetwork.backend.id
+    database = google_compute_subnetwork.database.id
+  }
+}
\ No newline at end of file